Blade for skates, sleighs, skees, and the like.



L. VON KOPPEN.

BLADE FOR SKATES, SLEIGHS, $KEES, AND THE LIKE.

AIPLIOATION FILED MAR. 29, 1912.

1 ,O88,709. Patented Mar. 3, 1914.

coLuMmA PLANOGRAPH CO..WASHINDTON, u. c.

LOTHAR VON KbPPEN, OF POTSDAM, GERMANY.

BLADE FOR SKATES, SLEIGHS, SKEES, AND THE LIKE.

To all whom it may concern:

Be it known that I, LOTHAR VON Korr'eN, capitalist, a citizen of theGerman Empire, residing at Potsdam, in the Kingdom of Prussia, Germany,have invented certain new and useful Improvements in Blades for Skates,Sleighs, Skees, and the like, of which the following is a specification.

The present invention relates to improvements in ice skates and similarsliding devices having a curved runner or runners.

The object of the improvements is to make the runner of such anarticular curve that, first, each of its several articles or sectionscorresponds in form with the natural movement of the skate when in use;that is to say, with the line, curve or figure to be described by thatsection of the runner which becomes active during such work, as it hasbeen learned by experience that in straight-away skating, curving ordescribing figures but quite determined sections of the runner will comeinto operative engagement with the ice surface; that, second, the footof the skater is given a more secure stand; and that, third, the skateis safer for inexperienced persons and children.

l/Vith these ends in view, my invention consists in certain novelfeatures of construction and combinations of parts, as is hereinafterfully described and pointed out in the claims.

In the accompanying sheet of drawings Figures 1 and 2 are bottom viewsof a pair of skates made in accordance with my invention, Fig. 1 showingthe right foot skate and Fig. 2, the left foot skate; Fig. 3 is alateral longitudinal elevation of a somewhat modified form of myimproved skate; Figs. 4 and 5 are similar bottom views as Figs. 1 and 2illustrating the modification shown in Fig. 3.

Similar letters refer to similar parts through the several views.

Referring to the construction shown in Figs. 1 and 2, the runner orblade 0 (the ice-engaging surface of which may be of any appropriatecross sectional form and is curved upwardly at the front and at theSpecification of Letters Patent.

Application filed March 29, 1912.

Patented Mar. 3, 1914.

Serial No. 687,160.

rear in the usual manner) is bodily convexed inwardly at its forwardpart 0 so that its forward extremity 1 curves outwardly, and convexedoutwardly at its rear part 0, so that its rear extremity 7L curvesinwardly, so that the runner 0 shall have a double curve. It isadvisable to let the front and rear extremities of the runner or bladeterminate in a plane with the median line of the base of the skate.

In the modification shown in Figs. 3 to 5, the body of the runner has astraight middle portion 7), an outwardly-convexed forward part b and aninwardly-convexed rear part the latter preferably tapering toward itsrear extremity h. The latter as well as the front extremity g terminatein a plane with the median line of the base of the skate and thestraight middle portion Z) of the runner lies in said median line.

When the turned up front edge of the runner is provided with a roughenedshoulder s, a so-called saw-as is the case in figure-cutting skates thispart or saw is preferably brought again back into the median line of theskate.

Having now particularly described and ascertained the nature of my saidinvention and in what manner the same is to be performed, I declare thatwhat I claim is 1. An ice skate having the ice-engaging surface of itsblade curved upwardly at the front and at the rear, said blade beingbodily convexed inwardly at its forward part, so that its forwardextremity curves outwardly, and its rear part convexed outwardly so thatits rear extremity curves inwardly.

2. An ice skate having the ice-engaging surface of its blade curvedupwardly at the front and at the rear, said blade being bodily convexedinwardly at its forward part, so that its forward extremity curvesoutwardly, and its rear part convexed outwardly so that its rearextremity curves inwardly, said front and rear extremities of the bladeterminating in a plane with the medium line of the base of the skate.

3. An ice skate having the ice-engaging surface of its blade curvedupwardly at the front and at the rear, said blade being bodily Intestimony whereof I hereunto affix my oonvexed inwardly at its forwardpart, so signature in presence of two witnesses.

that its forward extremity curves outwardly, and its rear part convexedoutwardly so LOTHAR VON KOPPEN.

that its rear extremity curves inwardly, the

- middle portions of the body of each runner Witnesses:

being straight and lying in the median line HENRY HAsPnR, 01 the base ofthe skate. VVOLDEMAR HAUPT.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of fatente Washington, D. C.

